Load sensing device for electric brake
AssigneeZF Active Safety US Inc.
InventorGalus Chelaidite
Life of this patent
Estimating the term…
Abstract
An actuator for an electric brake of a vehicle having a caliper assembly driven by a motor includes a gear train for transferring torque from the motor to the caliper assembly to brake the vehicle. The gear train has an driven gear and a sun gear connected to one another. A load sensing device senses a thrust load applied by the sun gear in response to torque generated by the motor during a braking operation. A controller is connected to the load sensing device and configured to adjust the torque applied to the gear train in response to receiving signals from the load sensing device indicative of the thrust load.
Claims17
An actuator for an electric brake of a vehicle having a caliper assembly driven by a motor, comprising:
- a gear train for transferring torque from the motor to the caliper assembly to brake the vehicle, the gear train including a driven gear and a sun gear connected to one another, the driven gear and the sun gear have a threaded connection with one another;
- a load sensing device for sensing a thrust load applied by the sun gear in response to torque generated by the motor during a braking operation;
- and
- a controller connected to the load sensing device and configured to adjust the torque applied to the gear train in response to receiving signals from the load sensing device indicative of the thrust load.
An actuator for an electric brake of a vehicle having a caliper assembly driven by a motor, comprising:
- a gear train for transferring torque from the motor to the caliper assembly to brake the vehicle, the gear train including an driven gear and a sun gear threadably connected to one another;
- a load sensing device aligned with a rotational axis of the sun gear, comprising:
- a cap;
- a load sensing member positioned between the cap and an axial end surface of the sun gear for measuring a thrust load applied by the sun gear in response to torque generated by the motor during a braking operation;
- and
- a controller connected to the load sensing device and configured to adjust the torque applied to the gear train in response to receiving signals from the load sensing device indicative of the thrust load.
Dependencies are inferred from the claim text.